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Authorities allege teen's stabbing part of murder plan

By PAUL FEELYNew Hampshire Union Leader

CONCORD — Police allege the stabbing of an Allenstown teen in January was just the start of a crime spree by two young lovers — one pregnant — with plans to flee to Florida after murdering multiple victims, according to an affidavit on file in Merrimack Superior Court.

The affidavit, unsealed late last week, includes portions of more than 70 pages of text messages sent between cell phones allegedly used by the two suspects, Kyle Buffum, 22, and Samantha Heath, 18, both of Barnstead, before a Jan. 26 attack on Andrea Halverson, 18, of Allenstown. Heath is accused of stabbing Halverson 15 times in the chest, stomach, left arm and back with a knife.

Buffum and Heath have each been charged with conspiracy to commit first-degree murder and several felonies in the case, and are being held in Merrimack County jails. Halverson underwent successful surgery and continues recovering, said prosecutor George Waldron.

In the affidavit, Allenstown police said they believe the stabbing took place in Heath’s car, and that Heath subsequently pushed Halverson out of the car on Deerfield Road in Bear Brook State Park, as witnesses started to come toward them about 9 p.m. on Jan. 26. Heath almost hit Halverson as she drove off, the affidavit states.

Halverson was found by a driver and his teenage daughter, who knew the victim from school, according to the affidavit. She was seated near a snow bank and bleeding heavily, screaming for help. Police believe Heath fled to Buffum’s Barnstead residence.

When authorities arrived there, Heath was allegedly packing a bag and ran into the woods near the house. An hour later, Heath was located and arrested with the help of the New Hampshire State Police police dog unit, said Allenstown Police Chief Paul Paquette.

Heath’s car, a red 1996 Chevrolet Geo Prism, was found by police outside Buffum’s residence, with red stains inside the vehicle and out, the affidavit said. Police allegedly found a knife on the backseat, with a 5-inch blade covered in what appeared to be blood, according to the affidavit.

During their investigation, police seized a Galaxy S-2 cell phone allegedly belonging to Buffum, and a Galaxy S-4 phone allegedly belonging to Heath.

According to the affidavit, after police obtained a search warrant for the phones by Judge Gerard Boyle of Concord District Court, state police forensic scientist Debbie Blair downloaded contents of the phones on Jan. 30.

In the affidavit, Allenstown police Chief Paul Paquette writes that an initial review of the data from the phones allegedly showed that Buffum and Heath were planning the “intended homicide” since January 10, 2014, and that Buffum allegedly planned to help Heath in disposing Halverson’s body.

The two also allegedly planned to kill a male subject, identified only as “Luther LKU,” and rob several gas stations as the pair hit the road for Florida. Paquette also writes there is evidence that Heath was pregnant at the time of the attack.

According to the messages contained in the affidavit, Halverson may have been friendly with Heath around the time of the attack, according to Heath’s and Buffum’s messages. The two appear to have agreed to meet on Jan. 11, with Halverson changing her mind.

According to the text message excerpts, Heath texted Buffum on Jan. 11, writing, “Please don’t blame me tonight on me I was ready to do it. I am ready. Shes’s find now, just excited to see me, So I got her trust.”

By Jan. 22, Buffum’s texts give the impression he is upset Heath has yet to carry out an attack.

“I’d really appreciate if you took care of andrea so I can let some of my hate toward you go.” Buffum allegedly wrote. “And im sorry to nag you about Andrea but you need to do something soon.your going to lose me. I was so turned on when you robbed that store. Imagine what bringing me the body of someone I hate would do for me.”

“It’ s fine I’ll get her but ky. I’m losing you either way,” Heath wrote. “Killing these people will make you feel better but you’ll still hate me.”

By Jan. 26, Heath allegedly implies in a text message that she has a plan. “Okay I think I know how I’m gunna do do it,” Heath allegedly wrote. Uhm. So what I’m gunna do is when I’m driving her back like on the road from concord to Allenstown and I’ll stab her. Like in the car then pull off into bear brook and like finish it there. I am a little nervous but honestly excited….”

The nature of the pair’s relationship with Halverson remains unknown, though all three were at party in June 2013 at a Concord address where Buffum was living at the time. Police broke up the party, with Halvorsen and Buffum facing alcohol-related charges.